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Category:   Application (Generic)  >   Microsoft Silverlight Vendors:   Microsoft
Microsoft Silverlight Double Free Memory Error Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1027040
SecurityTracker URL:  http://securitytracker.com/id/1027040
CVE Reference:   CVE-2012-0176   (Links to External Site)
Date:  May 8 2012
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4
Description:   A vulnerability was reported in Microsoft Silverlight. A remote user can cause arbitrary code to be executed on the target user's system.

Silverlight does not properly free memory while rendering specially crafted XAML glyphs. A remote user can create a specially crafted Silverlight application that, when loaded by the target user, will execute arbitrary code on the target system. The code will run with the privileges of the target user.

Alex Plaskett of MWR InfoSecurity reported this vulnerability.

Impact:   A remote user can create Silverlight content that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a fix.

A patch matrix is available in the vendor's advisory.

A restart is required.

The Microsoft advisory is available at:

http://technet.microsoft.com/en-us/security/bulletin/ms12-034

Vendor URL:  technet.microsoft.com/en-us/security/bulletin/ms12-034 (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (Any)

Message History:   None.


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